Improvement in metallic packings for stuffing-boxes



P. SAGE.

Metallic Packing for Stuffing-Boxes. No. 168,344, Ptented0ct.5,1875.

tion

UNITED S ATES PATENT OFFICE.

PHILIP SAGE, OF DUBUQUE, IOWA.

IMPROVEMENT IN METALLIC PACKlNGS FQR STUFFlNG-BOXES.

Specification i'orming part of Letters Patent No. 168,344, dated October 5, 1875; application filed July 19, 1875.

To all whom it may concern:

Be it known that I, PHILIP SAGE, of Dubuque, State of Iowa, have invented an Improvement in Metallic Packing for Stufiing- Boxes, of which the following is a specifica- The object of my invention is to form a durable, easily adjustable, and perfectly steamtight packing by the combination of a conicalshaped stuffing, made of any anti-friction metal, with the seat and follower in the common stuffing-box, as shown in section in the accompanying drawing.

a is the spiral cone, the conical base of which is fitted to the seat I) in the bottom of the stnffing-box c. d is the follower, exactly fitted to the conical spire internally, and its outside to the stuffing-hox c. This follower is kept in place by the bolts 6 f, which serve also to contract the spiral cone when necessary, keeping it always steam-tight around the piston-rod g.

The spiral cone is formed after the hole is made for the piston, and the outside conical form is finished by cutting a screw-thread from end to end and from the circumference to the opening for the piston-rod, leaving it a conical spire or a spiral cone, perfectly flexible and adjustable to the piston-rod by the bolts through the follower.

1 claim as my invention The anti-friction metallic conical spiral coil a, in combination with the seat I) and follower, when constructed substantially as and for the purpose herein specified.

PHILIP SAGE.

Witnesses H. L. FULTON, M. H. BEACH. 

